On the gc2 the other day with my ping ie1 9 iron with a modus 105 stiff. Ball speed 102, launch 27 spin 8800, height 35 yards, decent angle 52 degrees.
Ball goes nowhere for me.
I had been thinking about a heavier iron shaft. So a high school kid was in and I grabbed his Taylormade p790 9 iron with a 120 gram KBS tour shaft.
Loft difference between the 2 clubs is one degree.
The TM had 5 mph faster ball speed. Faster clubhead speed. What was strange maybe was other than 7500 rpm of spin, all other numbers I had were identical to the Ping.
Best reason I heard so far had to do with muscle activation swinging a light club vs a heavier club. Where I work out a lot, it made sense...
What so u guys think? Lighter not always further I guess?